Patents by Inventor Daniel D. Yee

Daniel D. Yee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Modular high voltage power supply for chemical analysis
    Patent number: 7710086
    Abstract: A high voltage power supply for use in a system such as a microfluidics system, uses a DC-DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC-DC converter and voltage-controlled resistor so as to regulate the output voltage of the high voltage power supply, as well as, to sink or source current from the high voltage supply.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: May 4, 2010
    Assignee: Sandia Corporation
    Inventors: James F. Stamps, Daniel D. Yee
  • Portable apparatus for separating sample and detecting target analytes
    Patent number: 7452507
    Abstract: Portable devices and methods for determining the presence of a target analyte using a portable device are provided. The portable device is preferably hand-held. A sample is injected to the portable device. A microfluidic separation is performed within the portable device and at least one separated component detected by a detection module within the portable device, in embodiments of the invention. A target analyte is identified, based on the separated component, and the presence of the target analyte is indicated on an output interface of the portable device, in accordance with embodiments of the invention.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: November 18, 2008
    Assignee: Sandia Corporation
    Inventors: Ronald F. Renzi, Karl Wally, Robert W. Crocker, James F. Stamps, Stewart K. Griffiths, Julia A. Fruetel, Brent A. Horn, Isaac R. Shokair, Daniel D. Yee, Victoria A. VanderNoot, Boyd J. Wiedenman, Jason A. A. West, Scott M. Ferko
  • Modular high voltage power supply for chemical analysis
    Patent number: 7400119
    Abstract: A high voltage power supply for use in a system such as a microfluidics system, uses a DC-DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC-DC converter and voltage-controlled resistor so as to regulate the output voltage of the high voltage power supply, as well as, to sink or source current from the high voltage supply.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: July 15, 2008
    Assignee: Sandia Corporation
    Inventors: James F. Stamps, Daniel D. Yee
  • Modular high voltage power supply for chemical analysis
    Patent number: 7161334
    Abstract: A high voltage power supply for use in a system such as a microfluidics system, uses a DC—DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC—DC converter and voltage-controlled resistor so as to regulate the output voltage of the high voltage power supply, as well as, to sink or source current from the high voltage supply.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: January 9, 2007
    Assignee: Sandia National Laboratories
    Inventors: James F. Stamps, Daniel D. Yee
  • Portable apparatus for separating sample and detecting target analytes
    Publication number: 20040126279
    Abstract: Portable devices and methods for determining the presence of a target analyte using a portable device are provided. The portable device is preferably hand-held. A sample is injected to the portable device. A microfluidic separation is performed within the portable device and at least one separated component detected by a detection module within the portable device, in embodiments of the invention. A target analyte is identified, based on the separated component, and the presence of the target analyte is indicated on an output interface of the portable device, in accordance with embodiments of the invention.
    Type: Application
    Filed: August 4, 2003
    Publication date: July 1, 2004
    Inventors: Ronald F. Renzi, Karl Wally, Robert W. Crocker, James F. Stamps, Stewart K. Griffiths, Julia A. Fruetel, Brent A. Horn, Isaac R. Shokair, Daniel D. Yee, Victoria A. Vandernoot, Boyd J. Wiedenmann, Jason A. A. West, Scott M. Ferko